Positive element
In mathematics, an element of a *-algebra is called positive if it is the sum of elements of the form a ∗ a {\displaystyle a^{*}a} . == Definition == Let A {\displaystyle {\mathcal {A}}} be a *-algebra.
In mathematics, an element of a *-algebra is called positive if it is the sum of elements of the form a ∗ a {\displaystyle a^{*}a} . == Definition == Let A {\displaystyle {\mathcal {A}}} be a *-algebra.
In mathematics, an element of a *-algebra is called positive if it is the sum of elements of the form a ∗ a {\displaystyle a^{*}a} . == Definition == Let A {\displaystyle {\mathcal {A}}} be a *-algebra.
Source: Wikipedia "Positive element" · CC BY-SA 4.0
Share this article: X · Bluesky